| Author: | Zhu, Ruiqi |
| Title: | Extension of cityGML by modeling LOD for underground utility network |
| Advisors: | Shi, Wen-zhong John (LSGI) |
| Degree: | M.Sc. |
| Year: | 2019 |
| Subject: | Human locomotion -- Computer simulation Human locomotion -- Analysis -- Data processing Hong Kong Polytechnic University -- Dissertations |
| Department: | Faculty of Construction and Environment Department of Land Surveying and Geo-Informatics |
| Pages: | i, ix, 90 pages : color illustrations |
| Language: | English |
| Abstract: | Simulation and analysis in urban and environmental planning, urban management and disaster management requires accurate and comprehensive knowledge of 3D urban space, critical infrastructure and subsurface features. In order to facilitate these applications, geographic information about the features, semantics and topography of urban features, their interdependence and their interrelationships are needed. In the context of 3D urban and architectural models, much work has been done on the modeling and representation of above-ground features. However, CityGML's standardized model lacks a rich information model for multiple different subsurface structures. In this context, the main topic of this thesis, modeling a utility network ADE in CityGML, becomes a very meaningful and urgent task. In this thesis, the utility network ADE (Application Domain Extension) model is proposed and represented in UML diagrams and XML Schema file according to the OGC standard. The newly developed utility network ADE model conforms to the citygml standard and be able to define the classes and relations for the most relevant topographic objects in cities and regional models with respect to their geometrical, topological, semantic and appearance properties. In addition, a clear definition of level of details of utility network model was given in the thesis. The utility network ADE model is introduced in explaining each feature in UML diagram and XML Schema file, analysis and discussion of defining level of details, and provident examples. |
| Rights: | All rights reserved |
| Access: | restricted access |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 991022385444503411.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 2.08 MB | Adobe PDF | View/Open |
Copyright Undertaking
As a bona fide Library user, I declare that:
- I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
- I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
- I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.
Please use this identifier to cite or link to this item:
https://theses.lib.polyu.edu.hk/handle/200/10563